Latest iOS 9.3 Beta Unbricks iPhones Affected by 'January 1, 1970' Date Bug

The most recent beta of iOS 9.3, provided to developers and public beta testers earlier this week, fixes a bug that caused 64-bit iPhones and iPads to be disabled or "bricked" when the date was set to January 1, 1970.

Discovered in mid-February, the "1970" bug occurs whenever an iOS device's date is manually set to 1970, resulting in a continuous reboot cycle. Speculation has suggested the reboot loop is the result of an integer underflow that causes the iPhone to reset the date to the maximum value, a huge number that iOS devices may be unable to process.

With iOS 9.3 beta 4, the date on the iPhone or iPad can't be set beyond December 31, 2000 at 7:00 p.m. ET, which equates to 1/1/01 at 12:00 a.m. GMT. That effectively puts an end to the 1970 bug, which was used to trick some people into bricking their devices.

newdatelimits
The beta also introduces a fix for devices that had been disabled by the bug. As explained on the MacRumors forums, devices stuck in boot loops were able to be restored to working order through a restore using iOS 9.3 beta 4.

This update fixed the 1970 date bug. Had two retail units stuck in boot loops do to some pricks setting the date to 1970 and restoring in DFU mode did not help. But restorting to this BETA update made both devices go back to normal.

Previously, there was no clear fix for devices that had been affected by the bug aside from disconnecting the battery, requiring users to go to the Genius Bar at an Apple retail store or attempt risky self-repairs. Apple promised a fix in an "upcoming software update," which appears to be iOS 9.3.

iOS 9.3 is currently only available to developers and public beta testers, but we may be nearing the end of the beta testing period. Apple has said the software will debut in the spring, and it's likely we will see it launch to the public following the company's rumored March 15 event where it is expected to introduce the iPhone 5se, the iPad Air 3, and new Apple Watch bands.

Tag: iOS 9.3
Related Forum: iOS 9

Top Rated Comments

naeS1Sean Avatar
73 months ago
Who was the brave on to test that? lol ;)
Score: 3 Votes (Like | Disagree)
Ternary Avatar
73 months ago
This makes me curious what date the iPhone would fall back to once it reaches January 19, 2038. Right now, it reverts back to January 1, 1970, but if that's no longer a selectable date, I wonder what would happen.
Score: 3 Votes (Like | Disagree)
TheRainKing Avatar
73 months ago
So they didn't bother to fix the bug, they just prevented users from triggering it.
Score: 2 Votes (Like | Disagree)
Altis Avatar
73 months ago
Finally I can set my phone clock back to our year of the Lord 1107 AD.
Score: 2 Votes (Like | Disagree)
OldSchoolMacGuy Avatar
73 months ago
Can't imagine how many idiots went into the Apple Stores and set the phones back just to be jerks.
Score: 2 Votes (Like | Disagree)
Adithya007 Avatar
73 months ago
Good job Apple!
Score: 1 Votes (Like | Disagree)

Top Stories

beats updater

Apple Officially Retires Beats Updater Utility in Favor of Over-the-Air Firmware Updates

Wednesday September 30, 2020 2:30 am PDT by
Apple has officially retired Beats Updater, the software utility that lets users update the firmware of their Beats Wireless headphones, earphones, and speakers. Beats Updater allows users to plug their Beats product directly into the USB port of their computer to check for firmware updates online, but with Apple's growing tendency to deliver over-the-air updates to wireless products via iOS ...
iphone 12 colors 2021

iPhone 12 Colors: Deciding on The Right Color

Thursday November 5, 2020 8:35 am PST by
The iPhone 12 and iPhone 12 Pro arrived in October 2020 in a range of color options, with entirely new hues available on both devices, as well as some popular classics. The 12 and 12 Pro have different color choices, so if you have your heart set on a particular shade, you might not be able to get your preferred model in that color. iPhone 12 mini and iPhone 12 The iPhone 12 mini and iPhone...
original iphone

Phil Schiller Says iPhone Was 'Earth-Shattering' Ten Years Ago and Remains 'Unmatched' Today

Monday January 9, 2017 7:15 am PST by
To commemorate the tenth anniversary of the iPhone, Apple marketing chief Phil Schiller sat down with tech journalist Steven Levy for a wide-ranging interview about the smartphone's past, present, and future. The report first reflects upon the iPhone's lack of support for third-party apps in its first year. The argument inside Apple was split between whether the iPhone should be a closed...
iPhone 13 Dummy Thumbnail 2

Kuo: iPhone 13 to Feature LEO Satellite Communications to Make Calls and Texts Without Cellular Coverage

Sunday August 29, 2021 7:39 am PDT by
The iPhone 13 will feature low earth orbit (LEO) satellite communication connectivity to allow users to make calls and send messages in areas without 4G or 5G coverage, according to the reliable analyst Ming-Chi Kuo. In a note to investors, seen by MacRumors, Kuo explained that the iPhone 13 lineup will feature hardware that is able to connect to LEO satellites. If enabled with the relevant...
m1 imac orange

New iMac Tidbits: Headphone Jack on Side, Ethernet Port on Power Adapter, Spatial Audio and WiFi 6 Support, No SD Card Slot

Wednesday April 21, 2021 6:38 am PDT by
Apple yesterday announced a completely redesigned 24-inch iMac with the M1 Apple silicon chip. The new iMac, the first major redesign of the Mac desktop computer since 2012, has several changes compared to the previous generation. In the aftermath of the event, a few new features and tidbits may have slipped under the radar, so we’ve compiled this list of some of the less-talked-about...
calculatorapp

iOS 11 Bug: Typing 1+2+3 Quickly in the Calculator App Won't Get You 6

Tuesday October 24, 2017 2:03 pm PDT by
A bug in the built-in Calculator app in iOS 11 is getting some major attention this week, despite the fact that it's been around since iOS 11 was in beta testing. At issue is a calculator animation that causes some symbols to be ignored when calculations are entered in rapid succession. You can try it for yourself: Type 1+2+3 and then the equals sign into the Calculator app quickly. Due to...
studio buds family

Beats Studio Buds Debuting Today With Active Noise Cancellation, Stemless Design, and More for $150

Monday June 14, 2021 8:00 am PDT by
We've seen a lot of teasers about the Beats Studio Buds over the past month since they first showed up in Apple's beta software updates, and today they're finally official. The Beats Studio Buds are available to order today in red, white, and black ahead of a June 24 ship date, and they're priced at $149.99. The Studio Buds are the first Beats-branded earbuds to truly compete with AirPods...
iPhone 13 Dummy Thumbnail 2

Full iPhone 13 Feature Breakdown: Everything Rumors Say We Can Expect

Tuesday August 31, 2021 7:50 am PDT by
With the launch of Apple's iPhone 13 lineup believed to be just a few weeks away, we have compiled all of the coherent rumors from our coverage over the past year to build a full picture of the features and upgrades coming to the company's new smartphones. For clarity, only explicit improvements, upgrades, and new features compared to the iPhone 12 lineup are listed. It is worth noting that...
affinity designer contour tool

Serif Updates Affinity Photo, Designer, and Publisher With New Tools and Functions

Thursday February 4, 2021 1:58 am PST by
Serif today announced across-the-board updates for its popular suite of Affinity creative apps, including Affinity Photo, Affinity Designer, and the Apple award-winning Affinity Publisher for Mac, all of which were among the first professional creative suites to be optimized for Apple's new M1 chip. "After another year which saw record numbers of people switching to Affinity, it's exciting to...
YouTube Picture in Picture Feature

YouTube Says iOS Picture-in-Picture Coming to All US Users

Friday June 18, 2021 9:41 am PDT by
After a long wait, YouTube for iOS is officially gaining picture-in-picture support, allowing all users, non-premium and premium subscribers, to close the YouTube app and continue watching their video in a small pop-up window. In a statement to MacRumors, YouTube says that picture-in-picture is currently rolling out to all premium subscribers on iOS and that a larger rollout to all US iOS...